Technical Report: DCC-2001-3

A Note on Sensor Location for Traffic Counting at Roundabouts: Solutions for a Particular Cost Function

 Ana Paula Tom├ís

DCC-FC & LIACC, Universidade do Porto
R. do Campo Alegre 823, 4150-180 Porto, Portugal
Phone: 351 22 6078830, Fax: 351 22 6003654
  March 2001 (rev. July 2001)


We investigate the so-called sensor location problem to perform traffic counts at urban intersections so as to obtain OD data. A particular cost function is considered by which counting each of the directional flows $q_{ii+1}$ is given a relatively small cost. We show that the optimal solutions admit an exact characterization.